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Suppose that you have obtained spectra of several galaxies and have measured the observed wavelength of...

Suppose that you have obtained spectra of several galaxies and have measured the observed wavelength of the H-alpha line (rest wavelength = 656.3nm) to be:

Galaxy 1: 659.4 nm.

Galaxy 2: 664.1 nm. Galaxy 3: 675.7 nm.

10. [4pt] Calculate the redshift, z, for each of these galaxies.

11. [4pt] Calculate the radial velocity of each of these galaxies.

12. [4pt] Assuming a Hubble Constant of 66.4 km/s/Mpc, calculate the distance to each of these galaxies (answer in Mpc).

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